Results 81 to 90 of about 2,640 (219)

2.45 GHz Rectenna With High Gain For RF Energy Harvesting [PDF]

open access: yes, 2019
This paper presents a high gain rectenna at 2.45 GHz. Two layers low cost FR4 substrate has been used with air-gap technology for this fabricated rectenna. The proposed designs contain antenna and open stub rectifying circuits with feedline.
Faza Syahirah Mohd Noor   +9 more
core   +1 more source

Autonomous Energy-Harvesting Sensor for Building Health Monitoring

open access: yesEng
Buried, battery-free sensor nodes offer a promising solution for structural health monitoring, reducing maintenance and improving infrastructure sustainability by monitoring slow-varying parameters such as temperature and humidity, which do not require ...
Julie Sibille   +5 more
doaj   +1 more source

Rectenna session: Micro aspects

open access: yes, 1980
Two micro aspects of the rectenna design are addressed: evaluation of the degradation in net rectenna RF to DC conversion efficiency due to power density variations across the rectenna (power combining analysis) and design of Yagi-Uda receiving elements ...
Gutmann, R. J.
core  

Flexible Rectenna on an Eco-Friendly Substrate for Application in Next-Generation IoT Devices

open access: yesApplied Sciences
Globally, there are now more than 19 billion connected Internet of Things (IoT) devices, which are fostering innovation across various sectors, including industry, healthcare, education, energy, and agriculture.
Nikolay Atanasov   +2 more
doaj   +1 more source

Nano-rectenna powered body-centric nano-networks in the terahertz band

open access: yesHealthcare Technology Letters, 2018
A wireless body-centric nano-network consists of various nano-sized sensors with the purpose of healthcare application. One of the main challenges in the network is caused by the very limited power that can be stored in nano-batteries in comparison with ...
Zhichao Rong   +3 more
doaj   +1 more source

Microscale Chiral Rectennas for Energy Harvesting

open access: yesAdvanced Materials
AbstractWireless radiofrequency rectifiers have the potential to power the billions of “Internet of Things” (IoT) devices currently in use by effectively harnessing ambient electromagnetic radiation. However, the current technology relies on the implementation of rectifiers based on Schottky diodes, which exhibit limited capabilities for high‐frequency
Suárez-Rodríguez, Manuel   +8 more
openaire   +4 more sources

Microwave Wireless Power Transfer for Mid-Air UAV Charging Using a Distributed Tiled Rectenna Architecture in 5G-Enabled Aerial Networks

open access: yesIEEE Access
Mid-air charging is a key enabler for persistent uncrewed aerial vehicle (UAV) operation in 5G-enabled aerial networks, but practical microwave wireless power transfer (WPT) is constrained by how the receive rectenna can be integrated on small multi ...
Joko Suryana   +4 more
doaj   +1 more source

Nonlinear Optical Rectennas

open access: yes, 2013
We introduce strongly-coupled optical gap antennas to interface optical radiation with current-carrying electrons at the nanoscale. The transducer relies on the nonlinear optical and electrical properties of an optical antenna operating in the tunneling regime.
Stolz, A.   +4 more
openaire   +2 more sources

Rectenna thermal model development

open access: yes, 1992
Deploying rectennas in space requires adapting existing designs developed for terrestrial applications to the space environment. One of the major issues in doing so is to understand the thermal performance of existing designs in the space environment ...
Kadiramangalam, Murall   +2 more
core  

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